The Sidewinder roller coaster at Elitch Gardens was shut down May 28, 2014 due to mechanical issues. (Photo: Zach Street/Twitter)

DENVER — A roller coaster at Elitch Gardens in Denver suddenly came to a stop Wednesday, leaving several riders stuck aboard for approximately 30 minutes.

According to the amusement park, crews had to stop the Sidewinder roller coaster mid-ride due to mechanical issues.

The coaster had to be manually brought back into the station, where guests were then escorted off.

“Sidewinder went down for a mechanical issue and anytime that happens we have to stop the ride and manually pull it back in,” said Jessie Falk, a spokesperson for Elitch Gardens. “Our guests were on the ride for roughly 20 minutes and, following our safety procedures, were escorted off. We pulled the train back into the station.”

Falk added that the park apologized to all 18 guests that were stuck on board the coaster, who all went back into the park.

The cause of the malfunction was not released.

Shortly after 2 p.m., the coaster was back up and running without passengers, according to Channel 2 News’ Will C. Holden.

ElitchGardens' Sidewinder rollercoaster stuck for 30 mins earlier, but appears to be back up & running w/o passengers pic.twitter.com/gLI4fc5qaW